28754973

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:179

約数の個数: 64

約数和(自身を含む): 49996800

約数和(自身を除く): 21241827

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 61, 79, 117, 153, 183, 221, 237, 351, 459, 549, 663, 711, 793, 1027, 1037, 1343, 1647, 1989, 2133, 2379, 3081, 3111, 4029, 4819, 5967, 7137, 9243, 9333, 12087, 13481, 14457, 17459, 21411, 27729, 27999, 36261, 40443, 43371, 52377, 62647, 81923, 121329, 130113, 157131, 187941, 245769, 363987, 471393, 563823, 737307, 1064999, 1691469, 2211921, 3194997, 9584991, 28754973]

約数ペア:

[(1, 28754973), (3, 9584991), (9, 3194997), (13, 2211921), (17, 1691469), (27, 1064999), (39, 737307), (51, 563823), (61, 471393), (79, 363987), (117, 245769), (153, 187941), (183, 157131), (221, 130113), (237, 121329), (351, 81923), (459, 62647), (549, 52377), (663, 43371), (711, 40443), (793, 36261), (1027, 27999), (1037, 27729), (1343, 21411), (1647, 17459), (1989, 14457), (2133, 13481), (2379, 12087), (3081, 9333), (3111, 9243), (4029, 7137), (4819, 5967)]